Be aware of mobile hacking

Hi friends, I like to share my real experience.
Once I got a sms from some anonymous number, I replied to that sms by asking "who are you" so the messaging continued between me and that person.
When I sent my third or fourth sms to that person I got some Thank you service message.
 I checked my balance.To my shock balance has been reduced by Rs.3. I guess the person would have diverted my number to some networking service number to use my balance. So i posted this post here to make u aware of this....